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ES2906523B2 - ELASTIC COUPLING - Google Patents

ELASTIC COUPLING Download PDF

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Publication number
ES2906523B2
ES2906523B2 ES202031036A ES202031036A ES2906523B2 ES 2906523 B2 ES2906523 B2 ES 2906523B2 ES 202031036 A ES202031036 A ES 202031036A ES 202031036 A ES202031036 A ES 202031036A ES 2906523 B2 ES2906523 B2 ES 2906523B2
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ES
Spain
Prior art keywords
sleeves
metal
metallic
bearings
annular
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ES202031036A
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Spanish (es)
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ES2906523A1 (en
Inventor
Teran Adrian Solorzano
Hernandez Juan Jose Martin
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Tejasa TC SLL
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Tejasa TC SLL
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Publication date
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Priority to ES202031036A priority Critical patent/ES2906523B2/en
Priority to EP21879581.3A priority patent/EP4230889A4/en
Priority to JP2023522959A priority patent/JP2023551358A/en
Priority to PCT/ES2021/070742 priority patent/WO2022079334A1/en
Publication of ES2906523A1 publication Critical patent/ES2906523A1/en
Application granted granted Critical
Publication of ES2906523B2 publication Critical patent/ES2906523B2/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/70Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged in holes in one coupling part and surrounding pins on the other coupling part
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/60Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising pushing or pulling links attached to both parts
    • F16D3/62Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising pushing or pulling links attached to both parts the links or their attachments being elastic
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/72Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/78Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members shaped as an elastic disc or flat ring, arranged perpendicular to the axis of the coupling parts, different sets of spots of the disc or ring being attached to each coupling part, e.g. Hardy couplings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61CLOCOMOTIVES; MOTOR RAILCARS
    • B61C9/00Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
    • B61C9/38Transmission systems in or for locomotives or motor railcars with electric motor propulsion

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Support Of The Bearing (AREA)

Description

DESCRIPCIÓNDESCRIPTION

Acoplamiento elásticoElastic coupling

Sector de la técnica.Technical sector.

La presente invención se refiere a un acoplamiento elástico aplicable en transmisiones mecánicas para la conexión de dos ejes y la transmisión de un par de un eje al otro.The present invention refers to an elastic coupling applicable in mechanical transmissions for the connection of two shafts and the transmission of a torque from one shaft to the other.

Estado de la técnica anterior.State of the prior art.

Actualmente son conocidos diferentes tipos de acoplamientos elásticos, empleados para conectar dos ejes, transmitir el par de giro de un eje a otro y proporcionar a la unión una elasticidad capaz de absorber ligeras deformaciones.Different types of elastic couplings are currently known, used to connect two shafts, transmit the torque from one shaft to another and provide the joint with an elasticity capable of absorbing slight deformations.

Estos acoplamientos presentan diferentes estructuras y configuraciones dependiendo del tipo y grado de deformación a absorber, lo que requiere que el acoplamiento tenga una rigidez determinada para cada tipo de deformación: axial, radial, cónica y torsional.These couplings have different structures and configurations depending on the type and degree of deformation to be absorbed, which requires the coupling to have a certain stiffness for each type of deformation: axial, radial, conical and torsional.

En el estado de la técnica son conocidas las articulaciones elásticas que comprenden dos armaduras cilíndricas metálicas, dispuestas concéntricamente, y una masa de material elastómero, normalmente caucho, comprimido entre las dos armaduras.In the state of the art, elastic joints are known that comprise two cylindrical metallic armatures, arranged concentrically, and a mass of elastomeric material, normally rubber, compressed between the two armatures.

El problema de estas articulaciones elásticas que comprenden una masa de material elastómero es que no soportan las altas temperaturas que se generan en el funcionamiento de determinadas máquinas o elementos de transporte, o a las que se pueden ver expuestas dichas maquinas cuando trabajan en zonas calientes, tales como fundiciones o zonas de hornos. Por ejemplo, el caucho soporta un máximo de 80°. Otro inconveniente es que el caucho se deteriora en contacto con ácidos o productos químicos en general, y no puede ser empleado para soportar grandes cargas.The problem with these elastic joints that comprise a mass of elastomeric material is that they do not withstand the high temperatures that are generated in the operation of certain machines or transport elements, or to which said machines can be exposed when they work in hot areas, such as such as foundries or furnace areas. For example, rubber supports a maximum of 80°. Another drawback is that the rubber deteriorates in contact with acids or chemical products in general, and cannot be used to support large loads.

Para solventar los problemas anteriores existen en el mercado determinadas articulaciones metálicas, como la descrita en la patente US 2,658,710 que coloca en el eje o soporte un amortiguador con forma de cilindro, con un taladro central. To solve the above problems, there are certain metallic joints on the market, such as the one described in US patent 2,658,710, which places a cylinder-shaped shock absorber on the axis or support, with a central hole.

El problema que presentan estas articulaciones es que son adecuadas para absorber esfuerzos únicamente en dirección axial y no proporcionan una amortiguación adecuada ante cargas radiales, oblicuas o torsionales.The problem with these joints is that they are suitable for absorbing forces only in the axial direction and do not provide adequate damping against radial, oblique or torsional loads.

En la patente europea EP2077402 (HUTCHINSON, S.A.) se describe un amortiguador para una estructura aeroespacial que está compuesto por una cámara anular con compartimentos, siendo rellanados cada uno de estos compartimentos mediante un cojín metálico de malla de hilo, completando el dispositivo un fluido de amortiguamiento que llena la cámara anular y los espacios entre las malla de hilo. Esta articulación elástica resulta compleja de fabricar por la incorporación del fluido amortiguador y la necesidad de incorporar retenes o sellos hidráulicos para evitar la fuga del fluido con el paso del tiempo.European patent EP2077402 (HUTCHINSON, S.A.) describes a shock absorber for an aerospace structure that is made up of an annular chamber with compartments, each of these compartments being filled by means of a metallic thread mesh cushion, the device completing a fluid of cushioning that fills the annular chamber and the spaces between the wire meshes. This elastic joint is complex to manufacture due to the incorporation of the damping fluid and the need to incorporate retainers or hydraulic seals to prevent fluid leakage over time.

Además, esta articulación presenta únicamente una elasticidad axial, y no proporciona una adecuada elasticidad angular, ni torsional, ni radial. En este antecedente la rigidez la otorga el cojín y el amortiguamiento es por fluido.In addition, this joint only presents an axial elasticity, and does not provide adequate angular, torsional, or radial elasticity. In this background, the rigidity is provided by the cushion and the damping is by fluid.

En el documento US 2729442 se describe una articulación con cojines deformables para disponer entre elementos de rotación, compuesto por una camisa exterior y una interior con forma cuadrada, entre las que se disponen cojines deformables.Document US 2729442 describes a joint with deformable cushions to be arranged between rotation elements, made up of an outer jacket and an inner square-shaped one, between which deformable cushions are arranged.

La patente de invención ES 2 686 395 B2, del mismo titular de la presente invención, describe una articulación elástica; que comprende: - un aro interior para su montaje sobre un eje, - un aro exterior concéntrico con el aro interior para su montaje en un soporte y -unos cojines de hilo metálico dispuestos entre: unos tramos intermedios del aro interior, de sección decreciente hacia los extremos opuestos de dicho aro interior, y dos porciones intermedias del aro exterior, de sección decreciente hacia los extremos opuestos de dicho aro exterior, y enfrentadas a los tramos intermedios del aro interior.Invention patent ES 2 686 395 B2, of the same holder of the present invention, describes an elastic joint; comprising: - an inner ring for mounting on a shaft, - an outer ring concentric with the inner ring for mounting on a support and - metal wire cushions arranged between: intermediate sections of the inner ring, with a decreasing section towards the opposite ends of said inner ring, and two intermediate portions of the outer ring, tapering towards the opposite ends of said outer ring, and facing the intermediate sections of the inner ring.

Explicación de la invención.Explanation of the invention.

El acoplamiento elástico objeto de la invención presenta unas características técnicas que aportan una serie de ventajas entre las que cabe mencionar: la utilización únicamente de materiales metálicos, una estructura de gran facilidad de montaje, la incorporación de los cojines metálicos encargados de proporcionar elasticidad al acoplamiento en unos cojinetes que realizan una sujeción estable de dichos cojines metálicos; que permite una construcción más ligera, con tolerancias mayores y, por tanto, con mayor economía y que presenta una disposición de los cojines metálicos que le proporciona al acoplamiento elástico, simultáneamente, las cuatro rigideces posibles: axial, radial, cónica y torsional.The elastic coupling object of the invention has technical characteristics that provide a series of advantages, among which it is worth mentioning: the use of only metallic materials, a structure that is very easy to assemble, the incorporation of metal cushions responsible for providing elasticity to the coupling in some bearings that perform a stable fastening of said metal cushions; which allows a lighter construction, with greater tolerances and, therefore, with greater economy and that presents an arrangement of the metallic cushions that provides the elastic coupling, simultaneously, with the four possible rigidities: axial, radial, conical and torsional.

Según la invención, este acoplamiento elástico comprende:According to the invention, this elastic coupling comprises:

- dos manguitos sensiblemente paralelos que presentan: una cara externa provista de medios de fijación de los respectivos ejes a acoplar; una serie de orificios enfrentados, distribuidos circularmente, y una cara interna, enfrentada al manguito opuesto, y provista de unas cavidades cilíndricas alineadas con los respectivos orificios;- two substantially parallel sleeves that have: an external face provided with fixing means for the respective axes to be coupled; a series of facing holes, circularly distributed, and an internal face, facing the opposite sleeve, and provided with cylindrical cavities aligned with the respective holes;

- un cuerpo metálico dispuesto entre los manguitos, sensiblemente paralelo a dichos manguitos y que presenta dos caras opuestas, comprendiendo en cada una de dichas caras una serie de pernos alineados con las cavidades y orificios de los respectivos manguitos y;- a metal body arranged between the sleeves, substantially parallel to said sleeves and having two opposite faces, comprising on each of said faces a series of bolts aligned with the cavities and holes of the respective sleeves and;

- unos cojinetes metálicos montados sobre los pernos del cuerpo y alojados en las respectivas cavidades de los manguitos.- metal bearings mounted on the body pins and housed in the respective cavities of the sleeves.

Dichos cojinetes comprenden una pieza anular metálica provista de una superficie exterior que contacta con la superficie interior de la correspondiente cavidad de uno de los manguitos; encontrándose montados en dicha pieza anular: un cojín interior de hilo metálico que conforma una superficie de contacto del cojinete con el perno correspondiente, y unos cojines laterales de hilo metálico que sobresalen por los extremos opuestos de la pieza metálica y conforman las superficies de contacto de dicho cojinete metálico con las caras enfrentadas del cuerpo y del correspondiente manguito; de modo que el conjunto de cojinetes metálicos le proporcionan al acoplamiento elástico unas rigideces torsional, radial, axial y cónica.Said bearings comprise a metallic annular piece provided with an outer surface that contacts the inner surface of the corresponding cavity of one of the sleeves; being mounted on said annular piece: an inner cushion of metal wire that forms a contact surface of the bearing with the corresponding bolt, and some lateral cushions of metal wire that protrude from the opposite ends of the metal piece and form the contact surfaces of said metallic bearing with the opposite faces of the body and of the corresponding sleeve; so that the set of metallic bearings provide the elastic coupling with torsional, radial, axial and conical rigidities.

El montaje de las diferentes partes del acoplamiento elástico, es decir, de los cojinetes en las cavidades de los manguitos y de los pernos en el interior de los cojinetes metálicos y de los orificios de los manguitos, se realiza en dirección axial, al igual que el acoplamiento de los ejes a acoplar con los manguitos laterales, que disponen sendos cubos para la recepción del extremo del eje correspondiente. The assembly of the different parts of the elastic coupling, that is, of the bearings in the cavities of the sleeves and of the bolts inside the metal bearings and the holes of the sleeves, is carried out in the axial direction, as well as the coupling of the shafts to be coupled with the lateral sleeves, which have respective hubs for receiving the end of the corresponding shaft.

En una realización preferente, el cojín interior de cada uno de los cojinetes metálicos comprende varios sectores anulares, distribuidos circunferencialmente, y ligeramente distanciados entre sí en dirección tangencial.In a preferred embodiment, the inner cushion of each of the metal bearings comprises several annular sectors, distributed circumferentially, and slightly spaced apart in the tangential direction.

Según la invención, la pieza anular de los cojinetes presenta interiormente unos apéndices perimetrales de sección en “L”, que tienen en dirección radial una longitud menor que la sección del cojín interior, de modo de los sectores anulares conformantes de dicho cojín interior sobresalen de apéndices perimetrales hacia el interior de los cojinetes.According to the invention, the annular part of the bearings internally has perimeter appendages with an "L" section, which have a length in the radial direction that is shorter than the section of the internal cushion, so that the annular sectors that make up said internal cushion protrude from perimeter appendages towards the interior of the bearings.

Dichos apéndices perimetrales definen en los cojinetes metálicos: una cavidad anular abierta hacia el interior del cojinete, en la que se encuentra alojada una porción periférica del cojín interior, que está comprimido contra la superficie interior de la pieza anular del correspondiente cojinete; y dos cavidades anulares, abiertas hacia laterales opuestos del cojinete, en las que se encuentran alojadas unas porciones extremas de los correspondientes cojines laterales.In metallic bearings, said peripheral appendices define: an annular cavity open towards the interior of the bearing, in which a peripheral portion of the inner cushion is housed, which is compressed against the inner surface of the annular part of the corresponding bearing; and two annular cavities, open towards opposite sides of the bearing, in which end portions of the corresponding side cushions are housed.

Con las características descritas este acoplamiento elástico proporciona una serie de ventajas adicionales a las mencionadas anteriormente; concretamente: absorbe y amortigua las irregularidades del par transmitido de un eje a otro, desplaza los regímenes críticos, acepta desalineaciones y diferencias entre los ejes, suprime las posibles tensiones de un acoplamiento rígido en las mismas condiciones, permite una construcción más ligera, con tolerancias mayores y por tanto, con mayor economía; no incluye materiales combustibles y soporta altas temperaturas.With the characteristics described, this elastic coupling provides a series of additional advantages to those mentioned above; specifically: it absorbs and cushions irregularities in the torque transmitted from one shaft to another, shifts critical speeds, accepts misalignments and differences between shafts, eliminates the possible stresses of a rigid coupling under the same conditions, allows a lighter construction, with tolerances older and therefore, with greater economy; does not include combustible materials and withstands high temperatures.

Otra característica destacable de este acoplamiento es que no tiene juego al mantener el contacto por medio de los cojines de hilo metálico, por lo que es silencioso, sin fricción y no necesita engrase.Another notable feature of this coupling is that it has no play as it maintains contact by means of the metal wire cushions, so it is silent, frictionless and does not require greasing.

Breve descripción del contenido de los dibujos.Brief description of the content of the drawings.

Para complementar la descripción que se está realizando y con objeto de facilitar la comprensión de las características de la invención, se acompaña a la presente memoria descriptiva un juego de dibujos en los que, con carácter ilustrativo y no limitativo, se ha representado lo siguiente: To complement the description that is being made and in order to facilitate the understanding of the characteristics of the invention, a set of drawings is attached to this specification in which, for illustrative and non-limiting purposes, the following has been represented:

- La figura 1 muestra una vista en perspectiva de un ejemplo de realización del acoplamiento elástico de la invención.- Figure 1 shows a perspective view of an embodiment of the elastic coupling of the invention.

- La figura 2 muestra una vista en alzado del acoplamiento elástico de la figura 1.- Figure 2 shows an elevation view of the elastic coupling of figure 1.

- La figura 3 muestra una vista explosionada en perspectiva del acoplamiento elástico.- Figure 3 shows an exploded perspective view of the elastic coupling.

- La figura 4 muestra una vista en alzado del acoplamiento elástico seccionado por un plano medio vertical.- Figure 4 shows an elevation view of the elastic coupling sectioned by a vertical median plane.

- La figura 5 corresponde al detalle “A” ampliado de la figura 4.- Figure 5 corresponds to enlarged detail "A" of figure 4.

- Las figuras 6 y 7 muestran sendas vistas en perspectiva y en alzado de uno de los cojinetes metálicos del acoplamiento elástico.- Figures 6 and 7 show perspective and elevation views of one of the metallic bearings of the elastic coupling.

- La figura 8 muestra una vista en planta de un cojinete metálico seccionado por el plano horizontal B-B’ referenciado en la figura 7.- Figure 8 shows a plan view of a metallic bearing sectioned by the horizontal plane B-B' referenced in figure 7.

- La figura 9 muestra una vista en alzado del cojinete metálico seccionado por el plano vertical C-C’ referenciado en la figura 7.- Figure 9 shows an elevation view of the metallic bearing sectioned by the vertical plane C-C' referenced in figure 7.

Exposición detallada de modos de realización de la invención.Detailed exposition of embodiments of the invention.

El acoplamiento elástico representado en las figuras 1 a 4 comprende: dos manguitos (1a, 1b) iguales, dispuestos simétricamente en planos paralelos; un cuerpo (2) metálico dispuesto entre dichos manguitos; y unos cojinetes metálicos (3) dispuestos entre dicho cuerpo (2) y los manguitos (1a, 1b).The elastic coupling represented in figures 1 to 4 comprises: two equal sleeves (1a, 1b), arranged symmetrically in parallel planes; a metal body (2) arranged between said sleeves; and metal bearings (3) arranged between said body (2) and the sleeves (1a, 1b).

Los manguitos (1a, 1b) son metálicos y disponen en su cara externa de un cubo (11) conformante de unos medios para su fijación a los ejes (E1, E2) a acoplar, tal como se muestra en la figura 2.The sleeves (1a, 1b) are metallic and have a hub (11) on their external face that forms some means for fixing them to the shafts (E1, E2) to be coupled, as shown in figure 2.

Cada uno de los manguitos (1a, 1b) dispone de una serie de orificios (12) distribuidos circularmente y enfrentados al manguito (1b, 1a) opuesto y, en su cara interna unas cavidades (13) cilindricas, concéntricas con los mencionados orificios (12) y destinadas a recibir en su interior los respectivos cojinetes metálicos (3).Each of the sleeves (1a, 1b) has a series of holes (12) distributed in a circle and facing the opposite sleeve (1b, 1a) and, on its inner face, cylindrical cavities (13), concentric with the aforementioned holes ( 12) and intended for receive inside the respective metal bearings (3).

Por su parte, el cuerpo (2) comprende en sus caras opuestas una serie de pernos (21) alineados con las respectivas cavidades (13) y orificios (12) de los manguitos (1a, 1b).For its part, the body (2) comprises on its opposite faces a series of bolts (21) aligned with the respective cavities (13) and holes (12) of the sleeves (1a, 1b).

Tal como se observa en las figuras 4 y 5, los cojinetes metálicos (3) se encuentran montados sobre los pernos (21) del cuerpo (2) y alojados en las respectivas cavidades (13) de los manguitos (1a, 1b).As can be seen in figures 4 and 5, the metal bearings (3) are mounted on the pins (21) of the body (2) and housed in the respective cavities (13) of the sleeves (1a, 1b).

Como se puede observar en las figuras 6 a 9 los cojinetes metálicos (3) comprenden una pieza anular (31), sensiblemente cilíndrica y preferentemente de acero, que presenta en su superficie interior unos apéndices (32) perimetrales de sección en “L”.As can be seen in Figures 6 to 9, the metal bearings (3) comprise an annular piece (31), substantially cylindrical and preferably made of steel, which has perimeter appendages (32) with an "L" section on its inner surface.

Dichos apéndices (32) definen una cavidad anular, abierta hacia el interior de los cojinetes metálicos (3) en la que se encuentra alojada una porción periférica de un cojín interior (33) de hilo metálico, conformado en este caso por varios sectores anulares (33a, 33b, 33c) distribuidos circunferencialmente, ligeramente distanciados entre sí y que sobresalen de los apéndices (32) hacia el interior del cojinete metálico.Said appendices (32) define an annular cavity, open towards the interior of the metallic bearings (3) in which a peripheral portion of an internal cushion (33) of metallic wire is housed, formed in this case by several annular sectors ( 33a, 33b, 33c) distributed circumferentially, slightly spaced from each other and protruding from the appendages (32) towards the interior of the metallic bearing.

Dichos apéndices (32) también definen en los cojinetes metálicos (3) dos cavidades anulares, abiertas hacia laterales opuestos del cojinete metálico, y en las que se encuentran alojadas unas porciones extremas de sendos cojines laterales (34) de hilo metálico.Said appendages (32) also define in the metal bearings (3) two annular cavities, open towards opposite sides of the metal bearing, and in which end portions of the respective side cushions (34) made of metal wire are housed.

Como se puede observar en la sección de la figura 4 y en el detalle ampliado de la figura 5, en la posición de montaje del acoplamiento elástico, los cojinetes metálicos (3) se encuentran montados sobre los pernos (21) del cuerpo (2) y alojados en las cavidades (13) del manguito (1a, 1b) correspondiente.As can be seen in the section of figure 4 and in the enlarged detail of figure 5, in the mounting position of the elastic coupling, the metal bearings (3) are mounted on the pins (21) of the body (2) and housed in the cavities (13) of the corresponding sleeve (1a, 1b).

En esta posición de montaje, los cojinetes metálicos (3) contactan: con la superficie exterior de la pieza anular (31) contra la superficie interior de la cavidad (13) correspondiente; con los sectores anulares (33a, 33b, 33c) conformantes del cojín interior (33) contra el perno (21) correspondiente, y con los extremos opuestos de los cojines laterales (34) contra las caras enfrentadas del cuerpo (2) y del manguito (1a, 1b) correspondiente. In this mounting position, the metal bearings (3) make contact: with the outer surface of the annular piece (31) against the inner surface of the corresponding cavity (13); with the annular sectors (33a, 33b, 33c) that make up the inner cushion (33) against the corresponding bolt (21), and with the opposite ends of the lateral cushions (34) against the facing faces of the body (2) and the sleeve (1a, 1b) corresponding.

De este modo el cuerpo (2) y los manguitos (1a, 1b) se mantienen separados por el cojín interior (33) y por los cojines laterales (34) de los cojinetes metálicos (3) lo que le proporciona al acoplamiento elástico unas rigideces axial, radial, torsional y cónica.In this way, the body (2) and the sleeves (1a, 1b) are kept separated by the inner cushion (33) and by the lateral cushions (34) of the metal bearings (3), which provides the elastic coupling with rigidities. axial, radial, torsional and conical.

Una vez descrita suficientemente la naturaleza de la invención, así como un ejemplo de realización preferente, se hace constar a los efectos oportunos que los materiales, forma, tamaño y disposición de los elementos descritos podrán ser modificados, siempre y cuando ello no suponga una alteración de las características esenciales de la invención que se reivindican a continuación. Once the nature of the invention has been sufficiently described, as well as a preferred embodiment, it is stated for the appropriate purposes that the materials, shape, size and arrangement of the elements described may be modified, as long as this does not imply an alteration of the essential characteristics of the invention that are claimed below.

Claims (3)

REIVINDICACIONES 1. - Acoplamiento elástico, adecuado para el acoplamiento de dos ejes (E1, E2) y la transmisión de un par de un eje a otro; caracterizado por que comprende:1. - Elastic coupling, suitable for the coupling of two shafts (E1, E2) and the transmission of a torque from one shaft to another; characterized by comprising: - dos manguitos (1a, 1b) metálicos, sensiblemente paralelos, que comprenden: una cara externa provista de unos medios de fijación de los respectivos ejes (E1 , E2) a acoplar; una serie de orificios (12) enfrentados, y una cara interna, enfrentada al manguito opuesto, y provista de unas cavidades (13) cilíndricas alineadas con los respectivos orificios (12);- two metal sleeves (1a, 1b), substantially parallel, comprising: an external face provided with fixing means for the respective shafts (E1, E2) to be coupled; a series of facing holes (12), and an internal face, facing the opposite sleeve, and provided with cylindrical cavities (13) aligned with the respective holes (12); - un cuerpo (2) metálico dispuesto entre los manguitos (1a, 1b), sensiblemente paralelo a dichos manguitos, y que comprende, en dos caras opuestas, una serie de pernos (21), alineados con las respectivas cavidades (13), y orificios (12) de dichos manguitos (1a, 1b) y;- a metal body (2) arranged between the sleeves (1a, 1b), substantially parallel to said sleeves, and comprising, on two opposite faces, a series of bolts (21), aligned with the respective cavities (13), and holes (12) of said sleeves (1a, 1b) and; - unos cojinetes metálicos (3) montados sobre los pernos (21) del cuerpo (2) y alojados en las respectivas cavidades (13) de los manguitos (1a, 1b); dichos cojinetes metálicos (3) comprenden una pieza anular (31) metálica que contacta con una superficie exterior contra la superficie interior de la cavidad (13) correspondiente de uno de los manguitos (1a, 1b); encontrándose montados en dicha pieza anular (31): un cojín interior (33) de hilo metálico que conforma una superficie de contacto del cojinete metálico (3) con el correspondiente perno (21) del cuerpo (2) , y unos cojines laterales (34) de hilo metálico que sobresalen por los extremos opuestos de la pieza anular (31) y conforman las superficies de contacto de dicho cojinete metálico (3) con las caras enfrentadas del cuerpo (2) y del correspondiente manguito (1a, 1b); de modo que los cojinetes metálicos (3) le proporcionan al acoplamiento elástico unas rigideces torsional, radial, axial y cónica.- metal bearings (3) mounted on the pins (21) of the body (2) and housed in the respective cavities (13) of the sleeves (1a, 1b); said metal bearings (3) comprise a metal annular piece (31) that contacts an outer surface against the inner surface of the corresponding cavity (13) of one of the sleeves (1a, 1b); being mounted on said annular piece (31): an inner cushion (33) of metallic thread that forms a contact surface of the metallic bearing (3) with the corresponding bolt (21) of the body (2), and some lateral cushions (34 ) of metal wire that protrude from the opposite ends of the annular piece (31) and form the contact surfaces of said metal bearing (3) with the opposing faces of the body (2) and the corresponding sleeve (1a, 1b); so that the metallic bearings (3) provide the elastic coupling with torsional, radial, axial and conical rigidities. 2. - Acoplamiento, según la reivindicación 1, caracterizado por que el cojín interior (33) comprende varios sectores anulares (33a, 33b, 33c), distribuidos circunferencialmente y ligeramente distanciados entre sí en dirección tangencial.2. - Coupling according to claim 1, characterized in that the inner cushion (33) comprises several annular sectors (33a, 33b, 33c), distributed circumferentially and slightly spaced from each other in the tangential direction. 3. - Acoplamiento, según una cualquiera de las reivindicaciones anteriores; caracterizado por que la pieza anular (31a) de los cojinetes metálicos (3) comprende interiormente unos apéndices (32) perimetrales de sección en “L”, que presentan en dirección radial una longitud menor que la sección del cojín interior (33) y que definen: una cavidad anular abierta hacia el interior del cojinete, en la que se encuentra alojada una porción periférica del cojín interior (33); y dos cavidades anulares, abiertas hacia laterales opuestos del cojinete metálico (3), en las que se encuentran alojadas unas porciones extremas de los correspondientes cojines laterales (34). 3. - Coupling according to any one of the preceding claims; characterized in that the annular piece (31a) of the metallic bearings (3) internally comprises peripheral appendages (32) with an "L" section, which have a length in the radial direction that is shorter than the section of the inner cushion (33) and that define: an annular cavity open towards the interior of the bearing, in which a peripheral portion of the inner cushion (33); and two annular cavities, open towards opposite sides of the metallic bearing (3), in which end portions of the corresponding lateral cushions (34) are housed.
ES202031036A 2020-10-14 2020-10-14 ELASTIC COUPLING Active ES2906523B2 (en)

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ES202031036A ES2906523B2 (en) 2020-10-14 2020-10-14 ELASTIC COUPLING
EP21879581.3A EP4230889A4 (en) 2020-10-14 2021-10-11 ELASTIC COUPLING
JP2023522959A JP2023551358A (en) 2020-10-14 2021-10-11 elastic joint.
PCT/ES2021/070742 WO2022079334A1 (en) 2020-10-14 2021-10-11 Elastic coupling

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ES202031036A ES2906523B2 (en) 2020-10-14 2020-10-14 ELASTIC COUPLING

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Publication number Priority date Publication date Assignee Title
US2658710A (en) 1950-05-04 1953-11-10 Robinson Aviat Inc Vibration isolation unit
US2729442A (en) 1951-10-23 1956-01-03 Hermann J Neidhart Resilient devices having deformable cushions
DE3907855A1 (en) * 1989-03-10 1990-09-13 Bhs Bayerische Berg BENDING ELASTIC CLUTCH ELEMENT AND METHOD FOR PRODUCING THE SAME
DE19812223A1 (en) * 1998-03-19 1999-09-23 Mayr Christian Gmbh & Co Kg Corrugated tube transmits torque from one shaft to another
FR2926122A1 (en) 2008-01-03 2009-07-10 Hutchinson Sa VIBRATION DAMPER, IN PARTICULAR FOR AEROSPATIAL STRUCTURE
DE102012002757A1 (en) * 2012-02-11 2013-08-14 FlexCon Germany GmbH Elastic torsion coupling
DE102014014490B4 (en) * 2014-09-25 2024-02-22 Süddeutsche Gelenkscheibenfabrik GmbH & Co. KG Coupling device
DE102014018842A1 (en) * 2014-12-17 2016-06-23 Süddeutsche Gelenkscheibenfabrik GmbH & Co. KG Coupling device and thread-reinforced joint device
ES2686395B2 (en) 2017-04-16 2019-10-18 Tejasa Tc S L L Elastic joint.

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ES2906523A1 (en) 2022-04-18
EP4230889A1 (en) 2023-08-23
JP2023551358A (en) 2023-12-08
WO2022079334A1 (en) 2022-04-21

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